Hollow tile.



J. M. CARMEAN.

HOLLOW TILE.

APPLICATION TILED AUG. 20, 1909.

Patented Apr. 26, 1910.

ATENT OFFICE. l

K 'jhpnnow TILE.

To all whom it may consent:

Belt :known that I; Joiix M. Ca'mmai', a citizen of the Un'ited' St atesof America,

and a resident of -i\larshal ltown, Marshall county, Iowa, ha veinvented certain new and useful Improvements to Hollow Tiles, of

which the following is a specification.

. My invention relates to improvements in hollow tile, and the object ofmy invention is to provide hollow cylindrical tile with suitableconnecting means so contrived that when such tile are secured togetherthey may he turned relative to each other in one direction foradjustment without separating, while it turned. in an opposite directionthey may be readily separated, thus fitting them especially for use asdrain tile, and when desired such tilingmay be perforated at suit ablelocations to facilitate the process of drainage tliereinto. This objectI have accomplishcd by the means which are hereinafter fully describedand claimed, and which are illustrated in the accompanyingdrawings, inwhich: i

Figure 1 is a side elevation of one end of a drain tile showing itremovablyconnected in my improved manner to another tile, the latterbeing in central longitudinal section, and both tiles being broken awayintermediate of their lengths. Fig. 2 is a perspective view of one endof a tile showing the construction of the receiving eiid thereof, therest of the tile being broken away.-

Fig. 3 is a side elevation of a tile united removably at each end in myimproved manner with other tiles, the latter beingintermediately brokenaway.

Similar characters of reference designate the same parts throughout theseveral views.

The hollow tiles A and B are shown as being formed with a pluralityofannular corrugations, but this is not an essential feature of myinvention, since the tile may be shaped as plain cylinders ifdcsircd,but my invention resides in the manner of coupling the tiles. I havealso shown 'in Fig. 3, the tiles provided with a plurality of orilicesf, which become useful when the tiles are formed of metal and used fordrainage. However, the orifices may be dispensed with, not being anessential part of my invention, when the tile is used as a conduitrather than for drainage purposes.

.\s shown in Fig. 1, the received end of' each tile is supplied with oneturnof a spiral corrugation b at its end, and 1f desired the corrugationmay be less than a single turn. However, this turn of spiral.corrugation'b is adapted tobe received into a similar spiral corrugationof one turn or less on the receiving end of'the abutting tile, as shownat c in said figure. The receiving shown, conducing to ease in assemblinThe character (1 designates a broad ammthe tile B,- and as shown in Fig.3, the spiral corrugation 0' opens into this closed annular corrugation(l from-the side, the annular corrugatiou' (I being disposed about thetile B so as to conform itself to the adjacent corrti'gation '0 asnearly as'possihle, that is, is set somewhat obliquely aboutthe tite, toconduee to the ready leading of .the' one or spiral corrugation into theother or annular corrugation. The corrugatioi'i (l is also made ofconsiderable breadth, so as to wholly receive the spiral corrugation bwritlxin itand permit of the corrugation i) being turned about withinitwithout bind ing. The object of this manner of connection between thetiles 'A and B is to permit any tile to be turned in one directionrelative coming disconnected or on the other hand so tightly boundthereto as to be prevented from freely turning. \Vhen the short spiralcorrugation b has been received wholly into the broad annularcorrugation d, it may be turned in the same direction as that in whichit was introduced without binding or becoming detached, and when thetile is perforated at f. as shown in Fig. 3, for irrigating or drainagepurposes, the separate tiles may be turned and adjusted with referenceto each 'other as desired so as to bring the orifices f into locationsdesired. \Yhen it is necessary requisite to reverse the movement,turning back the spiral corrugation b so that, when a slight pull'isadded, its end enters the way provided by the other spiral corrugation0, when it may be removed with but a sin le turn from the latter. Thebroad annu ar corru ation d therefore serves as a holding trough orchannel for the short spiral corrugation b, and when the latter 15within the trough so provided, it cannot escape theretion in which itentered the trough. lfhe corrugation (I being broad gives sco e for theturning therein, and a provision orexcorrugationc takes at a featheredge as to the other connected tile without-either befrom whencontinuously turned in the direcno,

7 Specification of Letters Patent.- Patented Apr. 26, 1910/ Applicationfiled August 20, 1909. sci-m1 No. 513,319.

lar corrugation on the receiving portion of v to separate a tile A froma tile B, it is only pansion under heat without binding, when saidspiral trough, said spiral ridge ada tcd used for certain installations.to pass from said spiral trough into sai an- Having describedmyinvention, what I .nular trough when rotated in one direction claim asnew, and desire to secure by Letters only, and to return from saidannular 5 Patent, is: trough into said spiral trough when rotated 30 1.In combination, hollow sections of tilin a reverse direction only. inghaving connecting-means comprising a 3. In combination, hollow sectionsof tilshort spiral ridge on t e received end of one ing havingconnecting-means comprising a section, a short spiral trough on thereceivshort spiral ridge on the received end of one in end of the othersection adapted to consection, a short spiral trough on the receiv- 35tam the said spiral ridge, and an annular ing end of the other sectionadapted to contrough in the second-mentioned section adtain the saidspiral ridge, and an annular .v jacent to and communicating 'with saidtrough in the second-mentionedsection adspiral trough, said spiral ridgeadapted to jacent to and communicating with ,said spipass from saldspiral'trough into said anral trough, said spiral ridge adapt-"d to pass40 nular trough, when rotated in one direction from said spiral troughinto said annular only. trough, and said sections being each pro- 2. Incombination, hollow sections of tilvided with a desired number of smallpering having connecting-means comprising a forations in certainlocations.

short spiral ridge on the received end of one Signed at Marshalltown,Iowa, this 1st 5 section, a short spiral trough on the reeeiv.- day 'ofAug. 1909. ing end of the other section adapted to eon- JOHN M. CARMEAN.tam the said spiral ridge, and a broader anlVitnesses: nular trough 1nthe second-incntioned sec- F RED M. lrVlLBUR,

tion adjacent to and communicating with I J. CRELLIN.

